August 2018 2 13 Report
Przekształć wyrażenie do najprostszej postaci.

a) (2x - y + 4) - (z + 14y) + ½ z = 2x - y + 4 - z - 14y + ½ z = 2x - 15y-...z
b) (-2 + ⅘ y - 2z) + (2z - 0,2y + 2x) =
c) 4z - 2e - (12a + 3z - 1,5e) =
d) 12y - (3x - 8y) + (2x - 4y) + x =

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